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ISO/TR 20172:2021

Welding — Grouping systems for materials — European materials

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Kehtiv alates 15.04.2021
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15.04.2021
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15.06.2009
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This document establishes a European grouping system for materials for welding purposes, classified in accordance with the grouping system of ISO/TR 15608. It is also applicable for other purposes such as heat treatment, forming and non-destructive testing. This document covers grouping systems for the following standardized materials: a) steel; b) aluminium and its alloys; c) copper and its alloys; d) cast irons; e) nickel and nickel alloys. For materials that are not assigned to a group in this document, the criteria of ISO/TR 15608 apply.
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